130 FLORA OF THE UPPER SUSQUEHANNA. 



SPOROBOLUS R. Br. 



S. vaginaeflorus (Torr. ) Wood. Not uncommon throughout 

 Tioga county, l\'nno. 



AGROSTIS L. 



A. alba L. Red-ToP. White Bent-crass. Plentiful in fields. 

 Cultivated for hay. Probably not indigenous. 



A. alba vulgaris (With.) Thurb. Red top. Herd's Grass. 

 Common in low meadows, ^'ery similar to the preceding. 



A. perennans (Walt.) Tuckerm. Thin Grass. Plentiful in 

 shaded places. 



A. hiemalis ( Walt. ) B. S. P. Hair-grass. Not uncommon in 

 shaded places. ( A. scabra Willd.) 



CINNA L. 



C. arundinaceaL Wood Reed grass. Indian Reed. Common 

 on the borders of ponds and streams. 



C. latifolia ( Trev. ) Griseb. Slender Reed-grass. Not uncom- 

 mon. Found with the preceding. (C. pemhita Trin.) 



CALAMAGR03T1S Adans. 



C. Canadensis (Michx.) Beauv. Blue-joint Grass. Not uncom- 

 mon in swamps, wet woods and along streams. 



HOLCUS L. 



H. lanatus L. Velvet Grass. Soft Meadow-grass, In moist 

 meadows; frequent, Graves. Rare, Fenno. Elsewhere not 

 reported. 



DESCHAMPSIA Beauv. 



D. flexuosa (L.) Trm. Wavy Hair-(;rass. River bank at 

 Apalachin, Fenno. Rocky upland woods, near Elmira, Liny. 

 Elsewhere not noted. 



AVENA L. 



A striata Michx. ' Wili) Oats. Infrequent. Found on rocky 

 hillsides. Gra7>es ; J-'enno ; Liny. Elsewhere not reported; 

 probably overlooked. 



